Can Someone Please Tell Why Graphics Do Not Look The Same as Editor When I Build my Game

My Game is 2D, I have Particle Systems That Look Completely Different When I Build my project, Some Sprites are completely replaced with others and some graphics are completely black or pink instead of how they should look, the scene ordering at times appears wrong even though I’m certain that the drawing order in Editor is correct, some sprites are not being rendered at all and I just see the background map,

Why Are my Graphics Working In Editor and Not in Build??

How can I solve this??

jessespike has it right I think:

Sounds like the shader on the particles is incompatible for your target platform.

Try changing the shader for those objects and see if they work, then you confirmed your issue. might be out of date plugins etc… Try updating them.

Black is bad lighting, the lighting doesn’t actually render as it would at runtime in the editor, look into your quality settings more.

I reset the editor, quality and graphics settings and now I am getting these errors

1:An asset is marked with HideFlags.DontSave but is included in the build:
Asset: ‘Library/unity default resources’
(You are probably referencing internal Unity data in your build.)

2:Building - Failed to write file: Temp/StagingArea/Data/Resources/unity_builtin_extra

I don’t know what they mean, Ive searched the web and there’s little info about these particular errors, and unity doesn’t tell me what is causing these errors.